Home / 21,735.48-30,009.90-14,671.80

Finding the Fourth Proportional to 21,735.48, 30,009.90 and 14,671.80

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Solution

The fourth proportional to 21,735.48, 30,009.90 and 14,671.80 is: 20,257.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735.48 : 30,009.90 = 14,671.80 : x
  2. Step 2: Convert to fraction form
    21,735.48/30,009.90 = 14,671.80/x
  3. Step 3: Cross multiply
    21,735.48x = 30,009.90 × 14,671.80
  4. Step 4: Simplify right side
    21,735.48x = 440,299,250.82
  5. Step 5: Solve for x
    x = 440,299,250.82/21,735.48
  6. Step 6: Final answer
    x = 20,257.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.